org.apache.pig.builtin

Class LOG

java.lang.Object

org.apache.pig.EvalFunc<Double>

org.apache.pig.builtin.Base

org.apache.pig.builtin.DoubleBase

org.apache.pig.builtin.LOG

public class LOG
extends DoubleBase

LOG implements a binding to the Java function Math.log(double). Given a single data atom it returns the natural logarithm (base e) of a double

Nested Class Summary

Nested classes/interfaces inherited from class org.apache.pig.EvalFunc

EvalFunc.SchemaType

Field Summary

Fields inherited from class org.apache.pig.EvalFunc

log, pigLogger, reporter, returnType

Constructor Summary

Constructors

Constructor and Description
LOG()

Method Summary

Methods inherited from class org.apache.pig.builtin.DoubleBase

exec, getArgToFuncMapping

Methods inherited from class org.apache.pig.builtin.Base

allowCompileTimeCalculation, outputSchema

Methods inherited from class org.apache.pig.EvalFunc

finish, getCacheFiles, getInputSchema, getLoadCaster, getLogger, getPigLogger, getReporter, getReturnType, getSchemaName, getSchemaType, getShipFiles, isAsynchronous, needEndOfAllInputProcessing, progress, setEndOfAllInput, setInputSchema, setPigLogger, setReporter, setUDFContextSignature, warn

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Constructor Detail

LOG

public LOG()